Britt Robertson has admitted what she absolutely hates about her boyfriend Dylan O'Brien — but don't worry, it only comes up when they're both working. In a recent interview, she revealed that they despise visiting each other on set.

“He hates it when I’m on set when he’s working and vice versa. I hate when he’s on set watching me work. I think it’s because we’re both actors and very aware of the process. A big part of the job is disconnecting from the people watching and the masses of crews," she said.

"I think it makes sense that we’re a little shy and sensitive about working in front of our significant others. To me it makes sense. It’s nice that we both don’t like it. When I go visit him I don’t even go on set. And, when he visits me it’s very rare that I’ll go on set.”

That totally makes sense! It must be so strange working in front of the person you're dating if you're not used to that. At least they keep their set visits to a minimum, and their professional lives strictly professional. Britt says that they don't even run lines together.

“Never. I don’t know why," she said. "I guess it’s just a really sensitive thing for me. I’m like that with my family, too. People that I care about I just don’t want to be privy to the whole process of what it takes to be an actor.”

Honestly, that's cool. She should do whatever makes her feel comfortable!

Are you surprised that this is what Britt and Dylan hate about each other? Tell us in the comments!